King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology最新文献_第4页

Reducing Heat Loss in The Adiabatic Section of a Two-Phase Closed Thermosyphon (TPCT) Using Acrylic Tube 用丙烯酸管减少两相闭式热虹吸绝热段的热损失

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-06-20 DOI: 10.14416/J.IJAST.2016.06.001

N. Pipatpaiboon, Sanhawat Thongdang, S. Rittidech

{"title":"Reducing Heat Loss in The Adiabatic Section of a Two-Phase Closed Thermosyphon (TPCT) Using Acrylic Tube","authors":"N. Pipatpaiboon, Sanhawat Thongdang, S. Rittidech","doi":"10.14416/J.IJAST.2016.06.001","DOIUrl":"https://doi.org/10.14416/J.IJAST.2016.06.001","url":null,"abstract":"This study aims to present a method of reducing heat loss in a two-phase closed thermosyphon (TPCT) by replacing copper tubing with acrylic in the adiabatic section. The designs used included total lengths of (L T ) 150, 300 and 450 mm. The evaporator section (L E ), Adiabatic section (L A ) and Condenser section (L C ) lengths were all alike at 50, 100 and 150 mm. The copper and acrylic tubes were of 15 mm external diameter and 12 mm internally. The temperatures applied at the evaporator section (T E ) were 60oC and 80oC. The angles of inclination were 0o, 20o, 40o, 60o, 80o and 90o, and air velocity at the condenser section was 1 m/s. The working fluid used was plain water with a filling ratio of 50% of the evaporator section volume. The experiment showed that as T E increased so did heat flux, however shorter L Ts resulted in lower heat flux, and the maximum heat flux achieved was 5 kW/m 2 at T E 80oC, L E 150 mm, with an angle of inclination at 80o to 90o using acrylic tube in the adiabatic section. When acrylic tube was installed instead of copper tube at L A the resulting thermal resistance (R tube ) Co/W decreased and heat flux increased. The maximum R tube result was recorded at around 2.78Co/W with the acrylic tube of L E 150 mm. with a T E of 80oC.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120998596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of Tourists on Emerging of Dengue Epidemic: Model Approach 游客在登革热流行中的作用:模型方法

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-06-20 DOI: 10.14416/J.IJAST.2016.06.002

K. Patanarapeelert, S. Polwiang, N. Kanyamee, Wannapa Panitsupakamon, Passawan Noppakaew

引用次数: 0

Heat Transfer Studies on Structured Metal Sheets 结构金属薄板的传热研究

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-05-31 DOI: 10.14416/J.IJAST.2016.05.002

J. Egert, K. Fraňa, S. Simon, Steffen Wichmann

引用次数: 2

An Application of Forecasting Models for the Supply and Demand Management of Cassava Products 预测模型在木薯产品供需管理中的应用

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-05-31 DOI: 10.14416/J.IJAST.2016.05.003

Natthaya Choosuk, A. Kengpol

引用次数: 2

Simple Solid-state Ag/AgCl Reference Electrode and Its Integration with Conducting Polypyrrole Electrode for the Production of All-solid-state pH Sensor 简单固态Ag/AgCl参比电极及其与导电聚吡咯电极集成生产全固态pH传感器

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-05-31 DOI: 10.14416/J.IJAST.2016.05.001

Walaiporn Prissanaroon Ouajai, P. Pigram, A. Sirivat

{"title":"Simple Solid-state Ag/AgCl Reference Electrode and Its Integration with Conducting Polypyrrole Electrode for the Production of All-solid-state pH Sensor","authors":"Walaiporn Prissanaroon Ouajai, P. Pigram, A. Sirivat","doi":"10.14416/J.IJAST.2016.05.001","DOIUrl":"https://doi.org/10.14416/J.IJAST.2016.05.001","url":null,"abstract":"In this work, a solid-state Ag/AgCl electrode was successfully fabricated via electrodeposition of silver, followed by chlorination in the presence of ferric chloride to obtain silver chloride. Stainless steel rod was used as the supporting electrode. XPS and SEM were performed on the surfaces of silver to investigate the changes in surface composition and morphology, revealing the successful formation of silver chloride on the silver layer after the chlorination process. Calibrated against the commercial Ag/AgCl electrode, the developed solid-state Ag/AgCl electrode showed insensitive potentiometric response in different buffer solutions with the response time of 10 s. All-solid-state pH sensor, constructed by integrating the solid-state Ag/AgCl electrode with the polypyrrole-based pH indicative electrode, showed a linear potentiometric sensitivity of –53.55±1.33 mV.pH -1 ( r 2 > 0.99) over pH range of 2–12 with excellent reproducibility. The pH measurement in the selected real solutions was demonstrated, suggesting that the constructed all-solid-state pH sensor showed the comparable sensing performance to the commercial glass pH electrode. The all-solid-state sensor is currently miniaturized for the further use in microfluidics and flow injection analysis system.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115699324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Environmental Performance Test of Hazardous Waste Incinerator in Indonesia 印度尼西亚危险废物焚烧炉环境性能试验

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-05-16 DOI: 10.14416/J.IJAST.2016.03.001

Kardono Kardono

引用次数: 3

Heat Integrated Process Design, Simulation and Control of Polymerization and Drying Sections for HDPE Production HDPE生产聚合和干燥环节热集成工艺设计、仿真与控制

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-05-02 DOI: 10.14416/J.IJAST.2016.03.002

Yanisa Samphawamontri, T. Srinophakun, P. Dittanet, Kotchakorn Charoencham

引用次数: 1

Phylogenetic Analysis of 16S rDNA Sequences of Pediococcus acidilactici TISTR 2309: Relationships between Closely Related Species 酸碱Pediococcus acidiactii TISTR 2309 16S rDNA序列的系统发育分析:近缘种间的亲缘关系

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-04-29 DOI: 10.14416/J.IJAST.2016.02.004

Kittipon Chantawongsatorn, S. Vatanyoopaisarn, S. Rutatip

{"title":"Phylogenetic Analysis of 16S rDNA Sequences of Pediococcus acidilactici TISTR 2309: Relationships between Closely Related Species","authors":"Kittipon Chantawongsatorn, S. Vatanyoopaisarn, S. Rutatip","doi":"10.14416/J.IJAST.2016.02.004","DOIUrl":"https://doi.org/10.14416/J.IJAST.2016.02.004","url":null,"abstract":"Phylogeny is the study of relationships and evolution between collections of things (genes, proteins, organisms or etc.) that are derived from a common ancestor. It is a useful tool for classifying organisms and gives better results than traditional identification methods based on morphological, metabolic and other phenotypic traits. Pediococcus acidilactici TISTR 2309 is one of the lactic acid bacteria (LAB) that was found in traditional Thai fermented sausages and it has the potential to produce bacteriocin against foodborne Gram positive bacteria, including Bacillus cereus and Staphylococcus aureus . Three phylogenetic trees derived from the Maximum Likelihood, Neighbor-Joining and Maximum Pasimony methods, were compared in order to find the relationship of the strains constructed by each method. The results from phylogenetic analysis of 16S rDNA sequences by these 3 methods indicated that P. acidilactici TISTR 2309 is homogenous to P. acidilactici IMAU60189. However when the same sequence of TISTR 2309 was used as input for search tools of NCBI Blast and ENA, the two databases provided different results of identification and different suggested strains. It was also found that the potential in bacteriocin production of the P. acidilactici TISTR 2309 isolate did not reduce over nine years of laboratory subculture.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114870277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Impregnation of Chitosan onto Activated Carbon for Adsorption Selectivity Towards CO2: Biohydrogen Purification 壳聚糖浸渍活性炭对CO2的选择性吸附:生物氢净化

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-04-21 DOI: 10.14416/J.IJAST.2016.03.003

Jarint Foungchuen, Naparat Pairin, C. Phalakornkule

{"title":"Impregnation of Chitosan onto Activated Carbon for Adsorption Selectivity Towards CO2: Biohydrogen Purification","authors":"Jarint Foungchuen, Naparat Pairin, C. Phalakornkule","doi":"10.14416/J.IJAST.2016.03.003","DOIUrl":"https://doi.org/10.14416/J.IJAST.2016.03.003","url":null,"abstract":"In this study, a novel bio-based adsorbent was developed for biohydrogen purification by an adsorption process. Palm shell activated carbons were immersed in the chitosan solutions at the concentrations between 0.1-2 g/L.The results showed that the impregnation of chitosan onto activated carbons at every concentration under the investigation changed the BET surface areas, pore size distribution, CO 2 adsorption capacity and the CO 2 /H 2 selectivity. The chitosan impregnated activated carbon that was the most suitable for carbon dioxide/hydrogen separation was the one impregnated in the 0.1 g/L chitosan solution yielding 0.12 g chitosan per 100 gram activated carbon. The modified activated carbon was found to have 11% higher CO 2 adsorption capacity than the native activated carbon even though its BET surface area was reduced by 3% due to the impregnation process. From a lab-scale pressure swing adsorption process using the modified activated carbon as the adsorbent (under an adsorption pressure of 4 bar and the feed flow rate of 2 L/min 50-30-20 mixture of CO 2 , H 2 and N 2 for a period of 2 min per cycle), the CO 2 concentration in the effluent was not detected for at least 5 cycles.","PeriodicalId":352801,"journal":{"name":"King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116744192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Sensory Characterization of Instant Tom Yum Soup 速溶冬阴汤的感官特征

King Mongkut’s University of Technology North Bangkok International Journal of Applied Science and Technology Pub Date : 2016-04-08 DOI: 10.14416/J.IJAST.2016.02.001

Kamolnate Kitsawad, Nasara Tuntisripreecha

引用次数: 5